Key Features:

• Type: Cold-cathode gas-filled voltage regulator tube

• Regulated Voltage: Approximately 75 volts

• Current Range: Typically regulates between 5 mA to 40 mA

• Maximum Current: Up to 100 mA for short durations (10 seconds)

• Base Type: Octal (K8A) – 8-pin configuration

• Dimensions: Approximately 105 mm (height) x 34 mm (diameter)

• Weight: Around 38 grams

The 0A3 tube is primarily used in:

• Voltage regulation circuits: Providing stable voltage to sensitive components.
• Vintage audio equipment: Ensuring consistent performance in classic amplifiers and radios.
• Test equipment: Serving as a reference voltage source in laboratory instruments.